Many wuxia TV series incorporates the concept of having a Wulin Mengzhu - Wulin Director, who I guess is in charge of the entire wulin. Everybody would fight each other in bloodiness until one person killed everybody else and became the Wulin Mengzhu. Now, it seems to me this concept is not very popular in Jin Yong's world. Which Jin Yong novels actually incorporated the concept Wulin Mengzhu? (DGSD had a brief reference to one).